BQ24108RHLR datasheet(4/29 Pages) TI

Part #	BQ24108RHLR

Description	SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POL CHARGE MANAGEMENT IC WITH INTEGRATED POWERFETS (bqSWITCHER)

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Manufacturer	TI [Texas Instruments]

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4 / 29 page

bq24100, bq24103, bq24105

bq24108, bq24113, bq24115

SLUS606B − JUNE 2004 − REVISED NOVEMBER 2004

4

www.ti.com

ELECTRICAL CHARACTERISTICS

TJ = 0°C to 125°C and recommended supply voltage range (unless otherwise stated)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INPUT CURRENTS

VCC > VCC(min),

PWM switching

10

mA

IVCC(VCC)

VCC supply current

VCC > VCC(min),

PWM NOT switching

5

mA

IVCC(VCC)

VCC supply current

VCC > VCC(min),

CE = HIGH

315

µA

0°C ≤ TJ ≤ 65°C,

VI(BAT) = 4.2 V

VCC < V(SLP) or VCC > V(SLP) but not in charge

3.5

I(SLP)

Battery discharge sleep current,

(SNS, BAT, OUT, FB pins)

0°C ≤ TJ ≤ 65°C,

VI(BAT) = 8.4 V

VCC < V(SLP) or VCC > V(SLP) but not in charge

5.5

µA

(SNS, BAT, OUT, FB pins)

0°C ≤ TJ ≤ 65°C,

VI(BAT) = 12.6 V

VCC < V(SLP) or VCC > V(SLP) but not in charge

7.7

VOLTAGE REGULATION

Output voltage bq24103/13

CELLS = Low, in voltage regulation

4.2

VOREG

Output voltage, bq24103/13

CELLS = High, in voltage regulation

8.4

V

VOREG

Output voltage, bq24100/08

Operating in voltage regulation

4.2

V

VIBAT

Feedback regulation REF for

bq24105/15 only (W/FB)

IIBAT = 25 nA typical into pin

2.1

V

Voltage regulation accuracy

TA = 25°C

−0.5%

0.5%

Voltage regulation accuracy

−1%

1%

CURRENT REGULATION − FAST CHARGE

IOCHARGE

Output current range of converter

VLOWV ≤ VI(BAT) < VOREG,

V(VCC) − VI(BAT) > V(DO−MAX)

150

2000

mA

100 mV ≤ VIREG ≤ 200 mV,

VIREG +

1V

RSET1

1000,

VIREG

Voltage regulated across RSNS−

Accuracy

Programmed

Where

5 kΩ ≤ RSET1 ≤ 10kΩ, Select RSET1 to

program VIREG,

VIREG(measured) = IOCHARGE + RSNS

(−10% to +10% excludes errors due to RSET1

and RSNS tolerances)

−10%

10%

V(ISET1)

Output current set voltage

V(LOWV) ≤ VI(BAT) ≤ VO(REG)

V(VCC) ≥ VI(BAT) × V(DO−MAX),

1

V

K(ISET1)

Output current set factor

VLOWV ≤ VI(BAT) < VO(REG)

V(VCC) ≥ VI(BAT) + V(DO−MAX),

1000

V/A

PRECHARGE AND SHORT-CIRCUIT CURRENT REGULATION

VLOWV

Precharge to fast-charge transition

voltage threshold, BAT,

bq24100/03/05/08 ICs only

68

71.4

75 %VO(REG)

t

Deglitch time for precharge to fast

charge transition

Rising voltage; tRISE, tFALL = 100 ns,

2-mV overdrive

20

30

40

ms

IOPRECHG

Precharge range

VI(BAT) < VLOWV,

t < tPRECHG

15

200

mA

V(ISET2)

Precharge set voltage, ISET2

VI(BAT) < VLOWV,

t < tPRECHG

100

mV

K(ISET2)

Precharge current set factor

1000

V/A

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